Perbandingan fondasi tiang bor dengan tiang pancang pada abutmen jembatan (studi kasus: Jembatan Surah)

Abstract

The ongoing toll road development is the Solo - Yogyakarta - NYIA Kulon Progo Toll Road Project which aims to reduce congestion on the main roads and support economic improvement in an area, especially Central Java and DI Yogyakarta. In this project several connecting bridges were built to avoid rivers and cultural heritage, one of which is the Surah Bridge. In supporting a bridge, a bridge foundation is needed which functions to distribute the load from the overlying structure to the supporting soil layer below without a decrease in the structural system. This research was conducted on the Solo-Yogya-NYIA Kulon Progo Toll Road Project Section 1 Package 1.1 Solo-Klaten, specifically on the Surah Bridge STA 12+195 using secondary data from PT Adhi Karya (Persero) Tbk. This study aims to determine the weight of the load acting on the bridge, the bearing capacity, and the foundation that is more effectively and efficiently used in receiving the loading of the Surah Bridge. The results obtained from this study are the loading on the Surah Bridge with a vertical load of 6776,29 tons. The bearing capacity (Qall) of the Drill Pile based on the Reese & Wright Method is 589.37 Tons and the Skempton Method is 476.55 Tons. The bearing capacity (Qall) of the Pile based on the U.S. Army Corps Method is 439.64 Tons and the Tomlinson Method is 630.10 Tons. The more effective and efficient foundation used on the Surah Bridge is the pile foundation using the calculation of the Tomlinson Method because the number of pile uses can be minimized.